No Sales Tax

Except North Carolina

Free Shipping

Free 2-day on CPAP Devices

Quality Care

Friendly personalized service

Discount PROMO6231 applied to cart

up to 15% off

All Products By Inogen

Inogen designs and manufacturers portable oxygen concentrators for oxygen therapy patients. Weighing between 3–7 pounds and capable of running on battery power for several hours at a time, the Inogen One series of oxygen concentrators are a practical solution to mobile oxygen therapy. Enjoy the freedom of a portable oxygen by purchasing an Inogen One oxygen concentrator today.

The Inogen One G4 Double Battery offers up to 5 hours of cordless power for your Inogen G4 oxygen concentrator. Purchase the accessory G4 Double Battery to extend your cordless oxygen supply with the Inogen One G4.